package com.hydl.power.mqtt;

import com.hydl.power.service.GatewayService;
import com.hydl.power.service.PowerDataService;
import com.hydl.power.utils.Uuid;
import org.eclipse.paho.client.mqttv3.MqttClient;
import org.eclipse.paho.client.mqttv3.MqttConnectOptions;
import org.eclipse.paho.client.mqttv3.MqttException;
import org.eclipse.paho.client.mqttv3.MqttTopic;
import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ScheduledExecutorService;

@Component
public class Client {
@Autowired
    private GatewayService GatewayServiceAuto;
    private static GatewayService gatewayService;  //静态对象

    @PostConstruct
    public void init(){
        gatewayService = this.GatewayServiceAuto;  //将注入的对象交给静态对象管理

    }
//    public static final String HOST = "tcp://39.100.115.58:1883";
    public static final String HOST = "tcp://47.92.223.115:1883";
    public static final String TOPIC = "/1021702588/publish";
    /**
     * 查询出网关列表  String类型的
     */
    private static final String clientid = "实时数据"+ Uuid.getUUID();
    private MqttClient client;
    private MqttConnectOptions options;
    private String userName = "admin";
    private String passWord = "public";

    private ScheduledExecutorService scheduler;

    public void start() {
        try {
            // host为主机名，clientid即连接MQTT的客户端ID，一般以唯一标识符表示，MemoryPersistence设置clientid的保存形式，默认为以内存保存
            client = new MqttClient(HOST, clientid, new MemoryPersistence());
            // MQTT的连接设置
            options = new MqttConnectOptions();
            // 设置是否清空session,这里如果设置为false表示服务器会保留客户端的连接记录，这里设置为true表示每次连接到服务器都以新的身份连接
            options.setCleanSession(true);
            // 设置连接的用户名
            options.setUserName(userName);
            // 设置连接的密码
            options.setPassword(passWord.toCharArray());
            // 设置超时时间 单位为秒
            options.setConnectionTimeout(10);
            // 设置会话心跳时间 单位为秒 服务器会每隔1.5*20秒的时间向客户端发送个消息判断客户端是否在线，但这个方法并没有重连的机制
            options.setKeepAliveInterval(20);
            // 设置回调
            client.setCallback(new PushCallback());
            //MqttTopic topic = client.getTopic(TOPIC);
            //setWill方法，如果项目中需要知道客户端是否掉线可以调用该方法。设置最终端口的通知消息
            //options.setWill(topic, "close".getBytes(), 2, true);

            client.connect(options);
            //订阅消息
/*            List<String> snlist = gatewayService.selectGatewaySn();
            *//**
             * 查出sn的列表
             *//*

            int[] Qos  = new int[snlist.size()];
            String[] topics = new String[snlist.size()];
            int i = 0;
            for (String sn:snlist) {
                //这里是MQTT的订阅地址
                topics[i++]= "/"+sn+"/publish";
            }*/
            String[] topics = new String[] {"data/#"};
            int[] Qos = new int[] {1};
            client.subscribe(topics,Qos);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    public static void main(String[] args) throws MqttException {
        Client client = new Client();
        client.start();
    }
}